Stack-flashing.



P. FIFE. STACK FLASHING.

APPLICATION FILED OCT. 14, 1913.

1,103,666. Patented July 14, 1914.

1mrnom=|s PETERS ca, WASHINGTON, 0. c.

i a sufiicient amount of air to enter between the base of the stack and j Tli FFTQ.

ROBERT. FRANKLIN FIFE, OF CANTON, OHIO.

' STACK-FLASHING.

Application filed October 14, 1913.

To all whom it may concern:

Be it known that I, Bonner FRANKLIN Fire, a citizen of the United States, residing at Canton, in the county of Stark and State of Ohio, have invented a new and useful Stack-Flashing, of which the following is a specification.

My invention relates to improvements in flashings for making water tight joints about stacks of various kinds where said stacks extend through a roof. The device is useful in a wide range of applications, including especially vent or soil pipes connected with plumbing or drainage systems and smoke stacks of either small or large diameter.

The objects of the invention are to generally improve devices of the character mentioned, to provide a device capable of being made in various standard sizes adapted to be readily and quickly applied with a sufficient degree of possible adjustment to insure proper fitting of the device about the stack and with provision made whereby the device may be used on roofs of various pitch.

A further important object is the provision of auxiliary drainage means whereby, in case of leakage around the stack, the water entering the interior of the flashing will be drained away onto the roof again and will be permitted the flashing so as to thoroughly dry any dampness caused by such leakage.

These objects, together with other objects readily apparent to those skilled in the art, may be attained by the construction illustrated in the accompanying drawings, although the invention may be embodied in other forms, the construction illustrated being chosen by way of example.

In the drawings tion of a stack flashing embodying my invention in the position assumed on an inclined roof, the stack being shown in dotted lines. Fig. 2 is a side elevation of the same. Fig. 3 is a transverse sectional view on the line 3-3 of Fig. 4;. Fig. 1- is a vertical sectional view on the line 1- 1 of Fig. 1. Fig. 5 is an inside view of the lower member taken from above. Fig. 6 is an inside view of the upper member taken from below.

Throughout the several views similar reference numerals indicate similar parts.

On said drawings the numeral 1 generally Specification of Letters Patent.

Figure 1 is a front e'leva- Patented July 1d, 1914:.

Serial No. 795,836.

indicates the lower member and the numeral 2 the upper member of the device, and the numeral 3 the vertical stack, shown only in dotted lines.

The lower member comprises a fiat roof upwardly plate 1 and a transversely curved,

segmental tapering and backwardly inclined collar portion 5. The said collar ortion is provided at its two, spaced, rear edges with a double or reverse outward fold producing the rearwardly open grooves 6 which preferably extend more nearly perpendicular to the plate 1 than the forward curved face 7 of the collar portion. The lower edge of the collar portion 5 is connected to the plate 4;

i by the water tight joint at 8 which, however, does not extend rearwardly beyond the forward fold 9 of the grooves 6, the

' rear edges of the collar portion forming said lower ends upwardly spaced from the plate 4 as illustrated at 10 in Fig. 5, for the purpose hereinafter disclosed. At the lowest portion of the joint at 8, also, the lower edge of the collar portion 5 is cut away at 11, leaving an opening at the surface of the plate 5 into the interior of the collar portion.

Inside the collar portion 5 the plate 41 is provided with a median, substantially semi circular rear marginal opening 12 having its edges inwardly spaced from the wall of the collar portion 5, and turned upwardly from the plane of the plate 4 so as to produce the lower drainage channel 13 leading from the rear edge of the plate 41 forwardly to the drainage and ventilation opening at 11 and increasing in size and depth from said edge grooves having their toward said opening.

The upper stack engaging edge of the collar portion 5 is provided with the in wardly open beaded margin 14, thus throw ing the extreme upper edge of the collar portion 5 inwardly toward the stack. The upper member is provided with a roof plate 15 at the forward, lower edge of which are arranged under-folded integral. portions forming the grooves 16 adapted to receive the rear edges 17 of the lower member. intermediate the grooves 16 the upper member is provided with the front marginal opening 18 adapted to complement the opening 12 to produce a front-to-rear elongated opening in the complete roof plate formed of the plates i and 15. Connected to the plate 15 by a water tight joint at 19 is the curved tion 20.

, the opening 18 ward edge of the plate the channel 21 adjustment of the roof i upon the stack,

together about the drainage channel 1 3. At

front edges,

terminates substantially in line with the forward plain edges 23 of the collar por- In putting the upper and lower members stack the rear plain edges 17 of the lower member should be entered into the grooves 16 of theupper member, the forward portionof the channel 21 overlying and discharging into the rear portions of the the same time the plain edges 23 of thecollar portion 20 should be entered into the grooves 6 at the rear edges of the collar portion 5 and the forward folded edges of the plate 15 forming. the grooves 16. will be received into the spaces at 10 between the plate t and the lower ends of the folded rear edges of the collar portion 5. The upper edge of the collar portion 20 should be provided with an inwardly open beaded margin 25 similar to the beaded margin 14C, for the same purpose. For the purpose of drawing the collar portions 5 and 20 together upon the stack, clamping means should be provided. Such means maybe formed by the front metallic straps 26.connected to the collar portion 5 forward of the folds on the rear edges thereof, while the metallic straps 27 are connected to the collar portion 20 to the rear of its bolts 28 being extended through the ears 29 and 30 on the straps 26 and 27 for drawing thelower and upper members together. v

It will be readily understood that devices the character described may be constructed and carried in stock ready for application at any time desired. The flashing will be suitable for use on a roofof any usual pitch, the elongated aperture in the baseof the stack encircling collar providing for the plates 4 and 15 in accordance with the pitch of any ordinary roof. 'After 'the'device has been clamped whether large or small, the inturned marginal edges engaging the stack may be, if desired, drivendown to. a very close fit, or calking or packing material may be Wrapped about the stack, so as to be engaged by theinwardly open beads at the upper margin of the collar, as will be readily understood by those skilled in the art. Should the joint between the collar and stack leak at any time or should water enter the collar through any injury' thereto it will be drained by the channels 21 and 13 downwardly and through the opening at-ll onto closed in the the uppersurfcae of. the lower roof plate 4:.

Attention should also be called to the fact that the drainage opening at inits water to drain outwardly, but also permits a ventilation ofthe interior of the collar adapted to evaporate any dampness and thus maintain the interior of the collar and the roof, adj acent the stack, in a dry condition.

2 For the purpose of clear illustration it-has been necessary in the drawings to exaggerate the thickness of the sheet metal andv it will be understood that the folds and joints in the real article will constitute a neater and smoother construct-ion than can be disdrawings. 1 desireto further note in this connection that while the form of the device illustrated. and described is the best form in which I have contemplated em:

desire to be bodying myinvention, I do not limited tothe details of construction disclosed, as it will be evident that many changes may be made as circumstances re? quire or experience suggests, without departing from the spirit of the invention, within the scope of the appended claims.

1. In combination with an inclined roof and a stack extending therethrough, a stack flashing comprising a roof plate provided with an elongated stack opening adapted to accommodate said stack and to permit said roof plate to assume the necessary degree of inclination to conform to the pitch of said roof, the integral edge of said plate around said stack opening turned upwardly from the plane of said plate, that portion of said edge at the lower side of said opening extending upwardly farther than the remaining portion of said up-turned edge, a collar connected to said roof plate and surrounding and inclosing said stack opening and up- 11 notonly pe'rturned edge, the said collar at its upper end adapted to closely encircle and engage said stack and the lower outwardly spaced from said Lip-turned edge, producing a drainage channel between said up-turned edge and cpllar and said collar provided with a. drainage and ventilation openingleading from the lowest part of the said drainage channel in the interior of said collar onto the roof plate below said collar, whereby leakage into the interior of said collar will be conducted by said drainage channel and discharged onto said roof plate, and air will be permitted to enter the interior of said collar to produce evaporation of dampness. v

' 2. A stack'fiashing comprising upper and lower members, each. member provided with a base plate and a segmental collar portion connected thereto, said plates provided with complemental marginal openings having upturned inner edges spaced from the inner sides of said collarportions and producing drainage channels, the collar portion of the lower member providedwith a drainage end ofsaid collar being opening leading from the lowest part of the drainage channel in the interior of said 001- lar portion onto the roof plate of said lower member below said collar portion, and said upper member and lower member adaptedto be connected together with the roof plate of the upper member overlapping the roof plate of the lower member, the drainage channel of said upper member arranged to discharge 10 into the drainage channel of the lower member, andthe collar portions of said members forming a complete collar.

In testimony that I claim the above, I have hereunto subscribed my name in the presence of two Witnesses.

ROBERT FRANKLIN FIFE.

Witnesses WILLIAM H. MILLER, NILEs A. SPONSELLER.

Copies of this patent may be obtained for five cents each, by addressing the Gommissioner of Patents, Washington, I). G. 

